package exception;

public class ExceptionApiDemo {
    public static void main(String[] args) {
        System.out.println("程序开始了");
        try{
            String line = "null";
            System.out.println(Integer.parseInt( line));
        }catch (NumberFormatException e){
            System.out.println("捕获到空指针异常: " + e.getMessage());
            e.printStackTrace();
        }
        System.out.println("程序结束了");
    }
}
